Download dfafafad

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Diamond anvil cell wikipedia , lookup

Air well (condenser) wikipedia , lookup

Transcript
2012
Wind
The HORIZONTAL
MOVEMENT of air.
Caused by Differences in
TEMPERATURE and
PRESSURE
Warm Air
Cold Air
DIFFERENCES IN PRESSURE
Rising air creates: LOW PRESSURE
If air is lifted up, that means there is
L
ess air pushing down on earth.
Sinking air creates: HIGH PRESSURE
If air is sinking, then air is pushing down on the surface of earth with a
amount of pressure.
H
igh
THE CREATION OF WIND
•Differences in temperature cause air to rise and sink all over earth’s
surface.
•Rising and sinking air create high and low pressure.
•THE ATMOSPHERE DOES NOT LIKE UNBALANCED PRESSURE...
IT TRYS TO EQUAL OUT BY MOVING AIR FROM High to Low PRESSURE.
H
L
Types of Wind: SEA BREEZE
Air moves from the Sea.
Occurs during the day.
During the day, the land heats
up and air above it becomes
less dense and rises. Rising air
creates low
During the day, air over the
sea is cool. The cool air is
more dense, sinks, and forms
high pressure.
Types of Wind: LAND BREEZE
Air moves from the Land
Occurs during the night.
During the night, the land cools
quickly and the dense air above it
begins to sink creating high
pressure.
During the night, the sea stays
warm and the less dense warm air
above it rises creating low
pressure.
Global Winds
Wind current on a global scale.
• Warm air rises
and cold air
sinks.
• Rising and
sinking air
makes pressure
differences
Temperature
Differences
Pressure
Difference
Mr. Fetch’s Earth Science Classroom
Global Temperature Patterns
The sun’s rays are weaker near
the poles causing less
warming. The air here is cool.
The sun’s rays are stronger near
the equator causing more
warming. The air here is warm.
Mr. Fetch’s Earth Science Classroom
Global Winds
Hadley
Cells.
• Air moves
between the
equator and
the poles.
Global
Winds
Mr. Fetch’s Earth Science Classroom
The Coriolis Effect
• Air does not
move in a
straight line
because of
Earth’s rotation.
Coriolis
Effect
Mr. Fetch’s Earth Science Classroom
Global Winds
LOW PRESSURE
HIGH PRESSURE
Northern
Hemisphere
HIGH PRESSURE
LOW PRESSURE
LOW PRESSURE
HIGH PRESSURE
Southern
Hemisphere
HIGH PRESSURE
LOW PRESSURE
Mr. Fetch’s Earth Science Classroom
Global Winds
Remember, winds are
named from where
they come.
Polar Easterlies
- From 90°N to 60°N
- Deflected to right
60°N
Prevailing Westerlies
- From 30°N to 60°N
- Deflected to right
30°N
Easterly Trade Winds
- From 30°N to O°
- Deflected to right
Doldrums
0°
Easterly Trade Winds
- From 30°S to 0°
- Deflected to left
30°S
Prevailing Westerlies
- From 30°S to 60°S
- Deflected to left
60°S
Polar Easterlies
- From 90°S to 60°S
- Deflected to left
Mr. Fetch’s Earth Science Classroom